* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body, #app {
    height: 100%;
    overflow: hidden;
}

.region {
    /* 无边框窗口拖拽 */
    -webkit-user-select: none;
    -webkit-app-region: drag;
}

.no-region {
    -webkit-app-region: no-drag;
}

webview {
    display: inline-flex;
    width: 100%;
}
webview.hide {
    flex: 0 1;
    width: 0px;
    height: 0px;
}